Nonstop flight route between Alton, Illinois, United States and Baltra Island, Galápagos Islands, Ecuador:
Departure Airport:
(38°53'25"N by 90°2'45"W)
Arrival Airport:
(0°27'14"S by 90°15'56"W)
Distance from ALN to GPS:
2,718.46 miles (4,374.92 km)
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- About this route
- ALN Airport Information
- GPS Airport Information
- Facts about ALN
- Facts about GPS
- Map of Nearest Airports to ALN
- List of Nearest Airports to ALN
- Map of Furthest Airports from ALN
- List of Furthest Airports from ALN
- Map of Nearest Airports to GPS
- List of Nearest Airports to GPS
- Map of Furthest Airports from GPS
- List of Furthest Airports from GPS
About this route:
A direct, nonstop flight between St. Louis Regional Airport (ALN), Alton, Illinois, United States and Seymour Airport (GPS), Baltra Island, Galápagos Islands, Ecuador would travel a Great Circle distance of 2,718 miles (or 4,375 kilometers).
A Great Circle is the shortest distance between 2 points on a sphere. Because most world maps are flat (but the Earth is round), the route of the shortest distance between 2 points on the Earth will often appear curved when viewed on a flat map, especially for long distances. If you were to simply draw a straight line on a flat map and measure a very long distance, it would likely be much further than if you were to lay a string between those two points on a globe. Because of the large distance between St. Louis Regional Airport and Seymour Airport, the route shown on this map most likely appears curved because of this reason.
Try it at home! Get a globe and tightly lay a string between St. Louis Regional Airport and Seymour Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
| IATA / ICAO Codes: | ALN / KALN |
| Airport Name: | St. Louis Regional Airport |
| Location: | Alton, Illinois, United States |
| GPS Coordinates: | 38°53'25"N by 90°2'45"W |
| Area Served: | Alton, Illinois |
| Operator/Owner: | St. Louis Regional |
| Airport Type: | Public |
| Elevation: | 544 feet (166 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from ALN |
| More Information: | ALN Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | GPS / SEGS |
| Airport Name: | Seymour Airport |
| Location: | Baltra Island, Galápagos Islands, Ecuador |
| GPS Coordinates: | 0°27'14"S by 90°15'56"W |
| Area Served: | Baltra, Galápagos Islands, Ecuador |
| Airport Type: | Public / Military |
| Elevation: | 207 feet (63 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from GPS |
| More Information: | GPS Maps & Info |
Facts about St. Louis Regional Airport (ALN):
- Its operations are paid for by an airport taxation district created in 1946, which collects taxes from property owners in the Madison County townships of Alton, Wood River, Foster and Fort Russell.
- West Star Aviation is the largest fixed base operations company at the airport.
- The closest airport to St. Louis Regional Airport (ALN) is Lambert–St. Louis International Airport (STL), which is located only 20 miles (32 kilometers) WSW of ALN.
- St. Louis Regional Airport (ALN) has 2 runways.
- The furthest airport from St. Louis Regional Airport (ALN) is Margaret River Airport (MGV), which is located 11,002 miles (17,706 kilometers) away in Margaret River, Western Australia, Australia.
- Because of St. Louis Regional Airport's relatively low elevation of 544 feet, planes can take off or land at St. Louis Regional Airport at a lower air speed than at airports located at a higher elevation. This is because the air density is higher closer to sea level than it would otherwise be at higher elevations.
Facts about Seymour Airport (GPS):
- The furthest airport from Seymour Airport (GPS) is Sultan Iskandar Muda International Airport (BTJ), which is located 11,911 miles (19,169 kilometers) away in Banda Aceh, Indonesia.
- By 30 September 1945, most personnel were withdrawn and only a housekeeping staff remained.
- Seymour Airport (GPS) currently has only 1 runway.
- The airport resides at an elevation of 207 feet above mean sea level.
- The closest airport to Seymour Airport (GPS) is San Cristóbal Airport (SCY), which is located 55 miles (88 kilometers) SE of GPS.
- Because of Seymour Airport's relatively low elevation of 207 feet, planes can take off or land at Seymour Airport at a lower air speed than at airports located at a higher elevation. This is because the air density is higher closer to sea level than it would otherwise be at higher elevations.
- Seymour Airport is an airport serving the island of Baltra, one of the Galápagos Islands in Ecuador.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 19.64 miles (31.61 km) WSW | Lambert–St. Louis International Airport (STL) | St. Louis, Missouri, United States |     |
| 2 | 22.85 miles (36.78 km) SSW | St. Louis Downtown Airport (CPS) | Cahokia, Illinois (near St. Louis), United States | |
| 3 | 26.41 miles (42.50 km) SSE | MidAmerica St. Louis Airport (BLV) | Belleville, Illinois, United States | |
| 4 | 36.08 miles (58.06 km) E | Greenville Airport (GRE) | Greenville, Illinois, United States | |
| 5 | 36.24 miles (58.32 km) WSW | Spirit of St. Louis Airport (SUS) | Chesterfield, Missouri, United States | |
| 6 | 60.74 miles (97.76 km) ESE | Salem–Leckrone Airport (SLO) | Salem, Illinois, United States | |
| 7 | 68.78 miles (110.69 km) NNE | Abraham Lincoln Capital Airport (SPI) | Springfield, Illinois, United States | |
| 8 | 75.13 miles (120.92 km) ESE | Mt. Vernon Airport (MVN) | Mount Vernon, Illinois, United States | |
| 9 | 88.08 miles (141.75 km) SSE | Southern Illinois Airport (MDH) | Carbondale/Murphysboro, Illinois, United States | |
| 10 | 90.73 miles (146.02 km) NE | Decatur Airport (DEC) | Decatur, Illinois, United States | |
| 11 | 95.12 miles (153.07 km) NW | Quincy Regional Airport (UIN) | Quincy, Illinois, United States | |
| 12 | 96.44 miles (155.20 km) SE | Williamson County Regional Airport (MWA) | Marion, Illinois, United States | |
| 13 | 102.97 miles (165.72 km) ENE | Coles County Memorial Airport (MTO) | Mattoon/Charleston, Illinois, United States | |
| 14 | 107.04 miles (172.27 km) WSW | Rolla National Airport (VIH) | Rolla, Missouri, United States | |
| 15 | 115.57 miles (186.00 km) W | Jefferson City Memorial Airport (JEF) | Jefferson City, Missouri, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,002.15 miles (17,706.21 km) W | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 10,979.99 miles (17,670.53 km) W | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 10,957.22 miles (17,633.90 km) W | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 4 | 10,954.58 miles (17,629.65 km) W | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 5 | 10,926.12 miles (17,583.85 km) W | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 6 | 10,910.74 miles (17,559.09 km) W | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 7 | 10,901.55 miles (17,544.30 km) W | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 8 | 10,897.24 miles (17,537.37 km) WSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 9 | 10,880.36 miles (17,510.20 km) W | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 10 | 10,861.31 miles (17,479.54 km) WSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 11 | 10,859.59 miles (17,476.77 km) W | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 12 | 10,841.22 miles (17,447.21 km) WSW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 13 | 10,808.74 miles (17,394.93 km) WSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 14 | 10,807.95 miles (17,393.67 km) WSW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 10,799.72 miles (17,380.43 km) WSW | Shark Bay Airport (MJK) | Monkey Mia, Western Australia, Australia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 54.78 miles (88.16 km) SE | San Cristóbal Airport (SCY) | San Cristóbal Island, Galápagos Islands, Ecuador | |
| 2 | 652.10 miles (1,049.45 km) E | General Ulpiano Paez Airport (SNC) | Salinas, Ecuador | |
| 3 | 663.23 miles (1,067.37 km) E | Eloy Alfaro International Airport (MEC) | Manta, Manabí, Ecuador | |
| 4 | 677.85 miles (1,090.89 km) E | Reales Tamarindos Airport (PVO) | Portoviejo, Ecuador | |
| 5 | 684.05 miles (1,100.87 km) ESE | Cap. FAP Victor Montes Arias Airport (TYL) | Talara, Peru | |
| 6 | 715.26 miles (1,151.10 km) ESE | Cap. FAP Pedro Canga Rodríguez Airport (TBP) | Tumbes, Peru | |
| 7 | 726.72 miles (1,169.55 km) E | José Joaquín de Olmedo International Airport (GYE) | Santiago de Guayaquil, Ecuador | |
| 8 | 739.61 miles (1,190.28 km) ESE | Santa Rosa International Airport (ETR) | Santa Rosa, El Oro, Ecuador | |
| 9 | 741.70 miles (1,193.65 km) E | Carlos Concha Torres International Airport (ESM) | Esmeraldas, Ecuador | |
| 10 | 742.07 miles (1,194.25 km) ESE | Cap. FAP Guillermo Concha Iberico International Airport (PIU) | Piura, Peru | |
| 11 | 762.45 miles (1,227.04 km) ESE | José María Velasco Ibarra Airport (MRR) | Macará, Ecuador | |
| 12 | 781.23 miles (1,257.26 km) NE | Drake Bay Airport (DRK) | Drake Bay, Costa Rica | |
| 13 | 784.58 miles (1,262.66 km) NE | Puerto Jiménez Airport (PJM) | Puerto Jimenez, Costa Rica | |
| 14 | 785.29 miles (1,263.81 km) NNE | Playa Sámara/Carrillo Airport (RIK) | Carrillo, Costa Rica | |
| 15 | 787.37 miles (1,267.14 km) NNE | Nosara Airport (NOB) | Nosara, Costa Rica | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,910.95 miles (19,168.77 km) NW | Sultan Iskandar Muda International Airport (BTJ) | Banda Aceh, Indonesia | |
| 2 | 11,883.97 miles (19,125.35 km) W | Binaka Airport (GNS) | Gunungsitoli, Nias Island, Indonesia | |
| 3 | 11,839.66 miles (19,054.03 km) WNW | Malikus Saleh Airport (LSW) | Lhoksumawe, Sumatra, Indonesia | |
| 4 | 11,799.41 miles (18,989.26 km) NNW | Car Nicobar Air Force Base (CBD) | Car Nicobar, India | |
| 5 | 11,783.52 miles (18,963.69 km) WNW | Polonia International Airport (MES) | Medan, Indonesia | |
| 6 | 11,768.76 miles (18,939.94 km) WNW | Kualanamu International Airport (KNO) | Medan, Indonesia | |
| 7 | 11,763.76 miles (18,931.89 km) W | Aek Godang Airport (AEG) | Padang Sidempuan, Indonesia | |
| 8 | 11,726.82 miles (18,872.44 km) NE | Weerawila Airport (WRZ) | Weerawila, Sri Lanka | |
| 9 | 11,725.80 miles (18,870.81 km) WSW | Rokot Airport (RKI) | Sipura, Indonesia | |
| 10 | 11,719.20 miles (18,860.18 km) NE | Mattala Rajapaksa International Airport (HRI) | Hambantota, Sri Lanka | |
| 11 | 11,703.13 miles (18,834.32 km) NE | Ampara Airport (ADP) | Ampara, Sri Lanka | |
| 12 | 11,703.11 miles (18,834.28 km) W | Minangkabau International Airport (MIA) (PDG) | Ketaping, West Sumatra, Indonesia | |
| 13 | 11,689.19 miles (18,811.88 km) NE | Batticaloa Airport (BTC) | Batticaloa, Sri Lanka | |
| 14 | 11,683.21 miles (18,802.26 km) ENE | Koggala Airport (KCT) | Galle, Sri Lanka | |
| 15 | 11,643.58 miles (18,738.48 km) NW | Phuket International Airport (HKT) | Phuket, Thailand | |